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deff fn [24]
3 years ago
15

What is the rule of 72

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
5 0
72/ the years it takes to double interest rate
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Given the slope a slope of 2 and a y-intercept of 7, write the equation in slope intercept form
MariettaO [177]

Answer:

y = 2x + 7

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

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What is the area of the following circle?
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U tell me cause idk
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3 years ago
What is the coefficient of X^2Y^2 in the expansion of (x+y)^4
nata0808 [166]

Answer:

6

Step-by-step explanation:

We want to expand this; (x + y)⁴

This can be written as;

(x + y)² × (x + y)²

This gives;

(x² + 2xy + y²) × (x² + 2xy + y²)

This gives;

x²(x² + 2xy + y²) + 2xy(x² + 2xy + y²) + y²(x² + 2xy + y²) = x⁴ + 2x³y + x²y² + 2x³y + 4x²y² + 2xy³ + x²y² + 2xy³ + y⁴

Simplifying gives;

x⁴ + 4x³y + 4xy³ + 6x²y² + y⁴

Thus, the coefficient of x²y² is 6

3 0
2 years ago
A RIGHT triangle has two other angles measuring x and 2x. What does x equal?
Marianna [84]

Answer:

x = 30

Step-by-step explanation:

because the interior angles of a triangle = 180° so if you subtract 90° you get 90. in order to get 90 you can use the equation x + 2x = 90 which you will then get x = 30

5 0
3 years ago
Find the area:......Brainliest........
pav-90 [236]

Answer:

Step-by-step explanation:

The average length of the weird trapezoidal shape on the left is

(2 m + 10 m)/2, or 6 m.  The width is 4 m, so the area is 24 m^2.

The area of the semicircle is (1/2)(pi)(2 m)^2, or 2pi m^2.

Thus, the overall area of the green shape is 24 m^2 + 2pi m^2.

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3 years ago
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